SOLIDWORKS 2018 - Revision Table Integration for PDM Manage. Tracking design changes is often done with revision tables, and now the revision table has a direct integration to SOLIDWORKS PDM. As a new revision is added, the revision number is indicated as an asterisk, because this change has not yet been approved, and the revision number is controlled by SOLIDWORKS PDM. Comments can be added to the revision table, but the “approved” field remains blank.